/*
 *  vlife http://github.com/wwwlike/vlife
 *
 *  Copyright (C)  2018-2022 vlife
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package cn.wwwlike.plugins.utils;

import org.apache.maven.model.Resource;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.project.MavenProject;


import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;


public class ClassLoaderUtil {

    public static ClassLoader getVlifeClassLoader(MavenProject project){
        ClassLoader loader =null;
        try {
            File projectBasedir=project.getBasedir();
            List<URL> classpathUrls = new ArrayList<>();
            // 1 添加每个Spring Boot应用程序的target目录的路径到classpathUrls列表中
            for(File file:projectBasedir.getParentFile().listFiles()){
                if(new File(file.getPath()+"/target/classes").exists()){
                    classpathUrls.add(new File(file.getPath()+"/target/classes").toURI().toURL());
                }
            }
            //2 添加resources里的jar包
            for(Resource resource: project.getBuild().getResources()){
                File[] files =new File(resource.getDirectory()).listFiles();
                for (File file : files) {
                    if (file.getName().endsWith(".jar")) {
                        classpathUrls.add(file.toURI().toURL());
                    }
                }
            }
            URL[] urls = classpathUrls.toArray(new URL[0]);
            loader=  new URLClassLoader(urls, Thread.currentThread().getContextClassLoader());

        }catch (Exception ex){
            ex.printStackTrace();
        }
        return loader;
    }

    /**
     * Get classloader
     *
     * @param project MavenProject
     * @return ClassLoader
     * @throws MojoExecutionException dd
     */
    public static ClassLoader getRuntimeClassLoader(MavenProject project) throws MojoExecutionException {
        try {
            List<String> runtimeClasspathElements = project.getRuntimeClasspathElements();
            List<String> compileClasspathElements = project.getCompileClasspathElements();
            URL[] runtimeUrls = new URL[runtimeClasspathElements.size() + compileClasspathElements.size()];
            for (int i = 0; i < runtimeClasspathElements.size(); i++) {
                String element = runtimeClasspathElements.get(i);
                runtimeUrls[i] = new File(element).toURI().toURL();
            }
            int j = runtimeClasspathElements.size();
            for (int i = 0; i < compileClasspathElements.size(); i++) {
                String element = compileClasspathElements.get(i);
                runtimeUrls[i + j] = new File(element).toURI().toURL();
            }
            return new URLClassLoader(runtimeUrls, Thread.currentThread().getContextClassLoader());
        } catch (Exception e) {
            throw new MojoExecutionException("Unable to load project runtime !", e);
        }
    }

}
